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A202795
T(n,k)=Number of nXk binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically
8
1, 2, 2, 4, 12, 4, 7, 50, 50, 7, 12, 188, 398, 188, 12, 21, 724, 3018, 3018, 724, 21, 37, 2820, 23436, 45519, 23436, 2820, 37, 65, 10960, 182430, 702846, 702846, 182430, 10960, 65, 114, 42544, 1417772, 10892633, 21649928, 10892633, 1417772, 42544, 114
OFFSET
1,2
COMMENTS
Table starts
...1......2.........4............7..............12.................21
...2.....12........50..........188.............724...............2820
...4.....50.......398.........3018...........23436.............182430
...7....188......3018........45519..........702846...........10892633
..12....724.....23436.......702846........21649928..........669872090
..21...2820....182430.....10892633.......669872090........41382940317
..37..10960...1417772....168585867.....20696263392......2552520578945
..65..42544..11017196...2608652667....639259508770....157398925950921
.114.165176..85621362..40368680378..19746821708510...9706685199080140
.200.641376.665418194.624709738658.609991818060458.598614098605286252
LINKS
EXAMPLE
Some solutions for n=5 k=3
..0..1..1....0..1..0....0..1..0....1..0..1....1..0..1....0..1..0....0..1..1
..0..0..0....1..1..1....1..0..1....1..1..0....1..0..1....1..0..0....0..1..1
..0..1..1....0..1..1....1..1..0....0..0..0....0..1..0....0..1..0....0..1..1
..0..1..1....1..0..1....0..1..0....1..0..0....0..1..1....1..1..1....1..0..0
..0..1..1....1..1..0....1..0..1....1..1..0....1..0..0....1..0..1....1..0..0
CROSSREFS
Column 1 is A005251(n+2)
Sequence in context: A115011 A296688 A219569 * A256890 A110476 A330762
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Dec 24 2011
STATUS
approved